Blender Viewport Texture Limit Size affects render resolution
Yes, it seems to be a fork :)

On one hand you would probably expect to see final render in a full res.
On other hand it make a sense keep lowers across whole app for its consistency.

You can say OK - lets use &quot;limit size&quot; only for external images, but that rule doesn't make things work better since you can &quot;pack&quot; images into a blend file.
Also your render is not always the last operation in blender. Image editor, Compositor, VSE, with viewers and previewing options ... all of these editors can continue in editing of this render too. So also here user still could benefit from &quot;limited size&quot;. By other words - render starts to play a roll of a &quot;texture&quot;. So I guess it is not an easy task to decide where to use limited and where to keep full size texture.
But it's just my theory, probably there is a simple solution behind a lot of my words :)

Suggestion
Try &quot;Auto Save&quot; add-on that saves render automatically, so you can just switch to folder and preview (view) your saved render ... similar step to switch to blender's image editor to check result.